---
title: "CVE-2026-33117: Security feature bypass vulnerability in Azure Key Vault Keys library for Java"
url: https://erroneo.us/security/cve/CVE-2026-33117/
description: "CVE-2026-33117 (com.azure:azure-security-keyvault-keys (Maven)): The Java Key Vault Keys library in the Azure SDK for Java contains an issue in the local…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-05-12
date_modified: 2026-08-10
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-33117"
kev: false
cvss: 9.1
epss: 0.00496
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-33117: Security feature bypass vulnerability in Azure Key Vault Keys library for Java

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.5% , percentile 42: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 42% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes com.azure:azure-security-keyvault-keys (Maven) < 4.10.6, fixed in 4.10.6 . Check your lockfile, including transitive dependencies.

## What it is

The Java Key Vault Keys library in the Azure SDK for Java contains an issue in the local cryptographic verification path where authentication tag comparison was implemented incorrectly. In affected applications that use the vulnerable local cryptography path, specially crafted encrypted input may bypass integrity verification checks. Operations delegated to the Key Vault service are not affected. The issue is addressed in version 4.10.6.

## Affected packages

- Maven `com.azure:azure-security-keyvault-keys` < 4.10.6 → fixed: 4.10.6

## Affected products (CVE record)

- Microsoft Azure SDK for Java: 1.0.0 < 4.10.6

## Severity

- microsoft CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C`
- GitHub CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.50% probability of exploitation activity in the next 30 days; percentile 42.

## Sources

- [Azure SDK for Java Security Feature Bypass Vulnerability](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33117)
- [GitHub Advisory GHSA-97jf-46m3-8953](https://github.com/advisories/GHSA-97jf-46m3-8953)
- [CVE.org record CVE-2026-33117](https://www.cve.org/CVERecord?id=CVE-2026-33117)
- [NVD entry CVE-2026-33117](https://nvd.nist.gov/vuln/detail/CVE-2026-33117)
- [github.com](https://github.com/Azure/azure-sdk-for-java/pull/48476)
- [github.com](https://github.com/Azure/azure-sdk-for-java/commit/1b5c5c79d85a5c9a9cfd07f6cdff6fd0f50eccf9)

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Source page: https://erroneo.us/security/cve/CVE-2026-33117/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt